You will be given a definition of a task first, then some input of the task.
Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.

Paragraph- Sent 1: Mike and Jeff are close friends.
Sent 2: Their school is having a guessing game to guess how many gumballs are in a box.
Sent 3: If they get the right amount they win $100.
Sent 4: If they get close they get a $20 gift card.
Sent 5: The box looks like it is missing some gumballs.
Sent 6: It turns out some people are eating them when they place their guess.
Sent 7: 100 people guessed and took a piece of candy.
Sent 8: The box is 10" by 10" by 10".
Sent 9: Each gumball is 1" each.
Sent 10: Mike guessed 500.
Sent 11: Jeff guessed 800.
Sent 12: They both said they would split their money they win, if they win. 
Question: Roughly how many gumballs are missing?.
Output:
Some.